Definitions for "Normalisation"
a series of steps followed to obtain a database design that allows for efficient access and storage of data in a relational database. These steps reduce data redundancy and the chances of data becoming inconsistent.
The theoretical design process of ensuring the efficiency of a relational database structure. Normalisation can take varying levels (or forms). The first level is known as 1st normal form etc. DBA's will specify in designing a database that the structure should be to at least 3rd normal form in practice. See also Relational Database, Database, Normal Form and DBA.
The process of structuring data to minimise duplication and inconsistencies. The process usually involves breaking down a single table into two or more tables and defining relationships between those tables. Normalisation is usually done in stages, with each stage applying more rigourous rules to the types of information which can be stored in a table. The first three levels in normalising a database are: First Normal Form (1NF): There should be no repeating groups in a table. Second Normal Form (2NF): No non-key fields may depend on a portion of the primary key. Third Normal From (3FN): No fields may depend on other non-key fields. In other words, each field in a record should contain information about the entity that is defined by the primary key.
The principle that, whatever a person's disability, their daily life should follow the rhythms and patterns of the daily lives of the majority of people in their society. Invented by Nirje in the 1970s and developed by Wolfensberger in the 1980s, the concept has been superseded by social role valorisation.
The concept of care which is based on the principle that people with learning difficulty should be provided with the same quality of education, leisure and living conditions as the rest of the population. Norm-Referenced Assessment A form of assessment which compares a child’s performance with what an average child of the same age would be expected to do.
The normalization principle means making available to all mentally retarded people patterns of life and conditions of everyday living which are as close as possible to the regular circumstances and ways of life or society.†(Bengt Nirjie, The basis and logic of the normalisation principle, Sixth International Congress of IASSMD, Toronto, 1982.)
This transformation of the detrended component series is required prior to aggregation into CLI in order to express the cyclical movements in a comparable form (i.e. for either a multiplicative or an additive model when estimating the trend); the cyclical amplitude is homogenised. The method used to calculate normalised indices is to subtract the mean from the observed value and then to divide the resulting difference by the mean of the absolute values of the difference from the mean.
A sizeable heat treatment procedure maintaining the product for a certain time at a fixed temperature above the temperature for austenite-ferrite transformation. It is carried out to improve the uniformity of the metallic structure and the consequent improvement in the steel's mechanical characteristics.
To become or return to normal. In Paget’s disease, one of the main aims of treatment is to achieve normalisation of biochemical markers, such as serum alkaline phosphatase. Back to the top
the imposition of standards or regulations; "a committee was appointed to recommend terminological standardization"
the process of increasing the volume of an audio source until the loudest part has reached the maximum volume that can be stored. (More)
Relating a particular aspect of environmental performance to underlying level of business activity - such as energy consumed per person or hour of programming broadcast - to help track changes year by year.